Port 2 - NEC 78K0 User Manual

CHAPTER 4 PORT FUNCTIONS

4.2.3 Port 2

Port 2 is an 8-bit input-only port.
This port can also be used for A/D converter analog input.
Figure 4-9 shows a block diagram of port 2.
Figure 4-9. Block Diagram of P20 to P27
RD
A/D converter
P20/ANI0 to P27/ANI7
RD: Read signal
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User's Manual U16227EJ2V0UD